Instead of dropping them entirely to ~arch, maybe something in between could be done: Said arches could start moving to ~arch the leaf and less important packages. E.g. we have (had?) a lot of sparc keywords on sound packages or ppc keywords on ocaml ones because at some point (~10 years ago) some dev was interested in these on this architecture but I'm pretty sure nobody uses them.
In short: Reduce stable coverage to reduce the workload. Also, from what I've seen in the thread, you are talking about keywords only, right ? Do these arches keep their stable mark in profiles.desc?
